public void Save()
{
FileStream fs = new FileStream("save.bin", FileMode.Create);
BinaryWriter w = new BinaryWriter(fs);
w.Write(IsLightTurn);
w.Write((Int32)_lightList.Count);
for (int i = 0; i < _lightList.Count; i++)
{
w.Write((Int32)_lightList[i].I);
w.Write((Int32)_lightList[i].J);
}
for (int i = 0; i < _darkList.Count; i++)
{
w.Write((Int32)_darkList[i].I);
w.Write((Int32)_darkList[i].J);
}
fs.Close();
}